- Unified PSI–PSDI
Infobox_Political_Party
party_name = Unified PSI–PSDI
party_name_italian = PSI–PSDI Unificati
party_
party_status = Former Italian National Party
membership = 700,964 (1966) [http://www.cattaneo.org/archivi/adele/iscritti.xls]
ideology =Democratic socialism ,
Social Democracy
website = N/A
colorcode = redThe Unified PSI–PSDI ("PSI–PSDI Unificati") was the name of the party formed by the union of the
Italian Socialist Party (PSI) and theItalian Democratic Socialist Party (PSDI) from1966 to1969 . The party party was often referred to as the Unified Socialist Party ("Partito Socialista Unificato", PSU).The two parties joined forces in 1966, after the entrance of PSI for the first time in an Italian government majority, the centre-left coalition led by
Aldo Moro and composed of DC, PRI and PSDI.After the unsuccessful performance of the united party in the 1968 general election, the PSU returned officially to the name PSI. On
July 6 ,1969 , the former members of PSDI left to form the "United Socialist Party", which adopted back the denomination of PSDI in1971 .
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